h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 13

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

25.5.6 Flash Memory
Characteristics
Table 25.49 Flash
Memory Characteristics
(Programming/Erasing
Operating Range)
B.3 Function
Item
797
798
906
907
Page
Table 25.49 amended
Notes 8 to 10 added
Notes: 8. Minimum number of times for which all
characteristics are guaranteed after rewriting (Guarantee
range is 1 to minimum value).
9. Reference value for 25C (as a guide line, rewriting should
normally function up to this value).
10. Data retention characteristics when rewriting is performed
within the specification range, including the minimum value.
SYSCR2 H'FF83 HIF
Figure amended
Bit
Initial value
Read/Write
EBR1, 2 H'FF82, H'FF83 Flash memory
Note *2 amended
Note: 2. Bits EB8 and EB9 are not present in the 64-kbyte
versions; these bits cannot be modified and are always read
as 0.
Item
Reprogramming count
Data retention time *
Revision (See Manual for Details)
KWUL1
R/W
10
7
0
KWUL0
R/W
6
0
P6PUE
R/W
Rev. 4.00 Jun 06, 2006 page xiii of liv
5
0
Symbol Min
N
t
DRP
WEC
—
—
4
0
CS4 enable
0
1
100 *
10
SDE
R/W
Host interface pin channel 4
functions disabled
Host interface pin channel 4
functions enabled
8
3
0
CS3 enable
0
1
Typ
10000 *
—
Host interface pin channel 3
functions disabled
Host interface pin channel 3
functions enabled
CS4E
Host interface enable
R/W
9
0
1
2
0
Max
—
—
Host interface function
disabled
Host interface function
enabled
Unit
Times
Years
CS3E
R/W
1
0
Test
Condition
HI12E
R/W
0
0